Paving



Feb. l, 1938.

. FISCHER PAVING Filed June 17, 1933 2 Sheets-Sheet l JYLbart C. Fch/er QM @c Feb. 1, 1938. A. FISCHER 2,106,944

Filed June 1'7, 1933 2 Sheets-Sheet 2 Z/UmLT; I mbar-t C Tschr Patented Feb. 1, 193s UNITED STATES PATENT OFFICEv 5 claims.

This invention pertains to paving or coring,

carrying out the above stated object and such other objects as will hereinafter appear.

Generally described the invention relates to I a pavement or flooring made of concrete o'r other plastic material which is poured in place in a plastic condition and thereafter sets or hardens. At predetermined intervals the ,concrete may be separated to have interposed a joint structure,

said joint structure comprising means which are embedded inA the adjacent endsv of the slabs. Associated with this means is another means which is elastic and resilient in character and provides a sealing means to prevent water from seeping into the substructure. 'I'he joint structure may include a staking means which is 'adapted to hold the joint structure in place while the concrete material is poured in place'.

For a better understandingvof the invention reference may be madeto the accompanying drawings, in which Fig. 1 is a perspective view of a joint structure embodying the present invention;

Fig; 2 is a sectional view showing the joint structure comprising separate units inserted in a paving, one of which is inserted near the top of the paving and the other of which is inserted near the bottom of the paving;

Fig. 3-is a sectional view of a modified form of the joint construction;

Fig. 4 is a longitudinal view ytaken on 'lines 3-3 of Fig. 3;" .y

Fig. 5 is a perspective view of still another modification ofthe joint structure; and

Figs. 6 and 7 illustrate still other embodiments of the present invention.

Referring speciiically to the drawings there is disclosed a pavement comprising concrete sections I and 2 which are adapted to be poured in place. Interposed at intervals between these concrete sections 'is a joint structure, denoted generally by numeral l.' This joint structure comprises a plate or slab I, preferably of metal,

having a, series of recesses 5 formed therein.

Intermediate of the side ledges and on both faces of the plate there maybe applied strips C andv .'lotplastic matcrial.suchasrubber,bltuminous material, and the like. These strips may be adhered to the metal strip 4 and may also be further secured by having some of the recesses 5 positioned so' that the' plastic material from the strips 6 and l may project therethrough and bond said strips integrally together. This joint structure may be used singly in the paving structure applied adjacent the top or bottom or intermediate of the paving.

In the paving structure illustrated in Fig. 2 two of these paving structures are inserted, one being placed near the top of the paving and the vother one near the bottom thereof. In order to entirely separate the ends of ,the adjacent slabs I and 2, it would be possible to have the strips 6 and I oiboth joint structures vertically continuous, thereby filling the intervening space 8 between the paving slabs. However, this intervening space 8 permits the plastic joint material to expand without projecting tothe tread surface of the pavement, and is desirable for this purpose. In order to' prevent thisspace 8 from filling with the concrete material when the slabs I and 2 are poured in place, the space may be protected by means of strips -9 and I0 vof paper, saturated feit or the like, which are applied on the outside faces of the plastic strips between the top and bottom perforated metal plates.

Any means may be utilized for'holding the joint structure in place while the paving slabs are being poured. This means is typified in the present invention by any number of stakes I0' which may project into the recesses and support the strips in place. The embodiment illustrated in Fig. 1 shows the plate I as being integral. In some constructions as typied in Fig. 5 this may be preferably divided longitudinally to provide separate plates III and II. 'Ihe two plates are joined by means of plastic material I2 which' is formed or applied on the abutting ends of the strips III and II. In this structure the two metal plates are securely fastened to adjacent slabs/ but are adapted to move in response to contraction and expansion by means of the`p1as- 45 tic material, which joins them, thereby Providing a :c tractible and expansible joint but yet se V curing a sealing means for the. seam between the'paving slabs. Y 50 v The modifications in Figs. 3 and 4 are sub-v stantially theesame as that above described. They show a Joint structure which isn-inserted" near the top of the paving. The plate I2 .is

substantially the samein'construction as that above described, except that it is provided with a longitudinal, intermediate rib I3, which is adapted to receive the top end of stake Il which is used to support the joint structure in place while the concrete slabs are poured in place.

In the modication illustrated in Fig. 6 a sealing means I5 may be embedded in the adjacent ends of slabs I and 2 by somesuch means as flanges I6. Sealing means I5 may be constructed of rubber, bituminous material or a metal, or some similar means coated with a waterproong material. This sealing means is formed preferably as a AU-shaped channel member but, of course, may be of other form, and readily adapted to be embedded in the adjacent end of the slabs. Y

If the sealing member is associated with the slab members I and 2 on the bottom side, the space I'I thereabove between the slabs may be left unfilled or may be lled with some preformed or poured iilling material, such as, rubber, asphalt or the like. Where the space is left unillled it will be preferable to have the slabs narrowly spaced apart so that any vehicles passing over the pavement will not -be affected by the space.

The modification in Fig. '7 shows a sealing strip I8 applied to i'lll the space near the top ofthe paving sections I and 2 in order to provide a smooth uninterrupted tread surface. Plate member 20 is embedded in the adjacent ends of slabs I and 2 and is provided on opposite edges with spaces 2| in order that the cement material may project therethrough when poured and securely bond the plate 20 in place. Filling strip I8 is provided with a portion I9 extending therebeneath to contact with the plate 20 and may be adhesively adhered thereto, or by means of recesses, such as more particularly shown in the modifications in Figs. l and 5; The space between the slabs immediately below the metal strip 2li may be left unfilled or 'may be filled with a preformed or poured expansion joint' material, as is more fully described in -reference to Fig. 6.

While yI have described various preferred embodiments in detail it will be understood that such detailed constructions are for the purpose of illustration and not as limitations of the invention. Various changes may be made in details without departing from the spirit of the invention.

I claim:

1. A paving construction comprising spaced apart expansion jointelement's and paving sections having inserted therebetween an expansiblc Joint, means embedded in rthe joint and in each of the sections, and means for supporting` the iirst means -in place while the sections are being assembled. A

2.- A paving'. construction comprising spaced apart paving sections, means projecting from the end of each of the paving sections intermediate the top and bottom thereof and with adjacent edges spaced apart, and an expansion joint strip inserted between and mounted upon the edges of the projecting means.

' 3. A pavement construction embodying spaced pavement sections and an expansion joint therefor including a plate having numerous perfora. tions therethrough, a plurality of stakestapered at their tops on which said plate is impaled, and an expansion illler strip partly above and partly below said plate and having its parts connected through the perforations thereof.

4. A paving construction comprising spaced apart paving sections having inserted therebetween an expansible ller, means embedded in the :dller and extending into each of the sectionsfor supporting the filler, and means spaced from the ller and embedded in the paying sections and supporting thefirst means in place while the paving sections are being laid.

5. A pavement construction comprising spaced pavement sections having a gap therebetween, a plate member embedded in the endof each pavement sectionintermediate the top and bottom thereof and protruding into said gap in a common horizontal plane with the edges spaced apart, and a. yielding preformed expansion joint strip member inserted between and mounted upon the spaced edges of said plate members within said gap having the plate members embedded therein.

ALBERT C. FISCHER. 

